Register



March 17, 1942. F. L.. WEST REGIsT'ERoNTRoL LOCK 2 Sheets-Sheet l Filed 4May s, 1941` www# March 17, 1942. F, L WEST 2,276,442

REGISTER CONTROL LOCK Filed May 5, 1941 2 Sheets-Sheet 2 ,I I Mr L. Mii

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Patented Mar, l?, 'i942 REGSTEE. CNTEL LCK Fletcher L. West, Alliance, (Ehio, assigner to The McCaskey -Register Company, Alliance, Ohio, a

corporation of Ohio li Claims.

The invention relates to a control lock for cash registers and similar machines, and more particularly to a locking mechanism for preventing the operation of the machine except when the proper key is inserted to render the locking mechanism inoperative.

The object of the invention is to provide a locking mechanism operatively associated with the main shaft of the machine and normally located in position to prevent movement of said main shaft.

Another object is the provision of such mechanism with means operated hy the insertion of a key for rendering said lock inoperative and permitting normal operation of the main shaft of the machine.

A further object is the provision of means requiring the use of a slotted, or split key, for rendering the locking means inoperative, in order to prevent the lock from being picked by a single tool.

A still further object is to provide a control lock of the character referred to comprising a lock lever normally located in position to prevent operation of the main shaft of the inachine, and a latch normally located in position to prevent movement of the lock lever.

Another object is to provide such a lock with a key so constructed that insertion of the key will rst render the latch inoperative and then render the lock lever inoperative permitting normal operation of the main shaft of the machine.

A further object of the invention is to provide such a control lock in which a stop lever is operatively connected to the main shaft of the ma- (or. remis-s) during the time that the key remains inserted in The above objects together with other which i.,

will be apparent from the drawings and following description or which may be later referred to may be attained by constructing the improved register control lock in the manner illustrated in the accompanying drawings in which Figure 1 is a fragmentary plan sectional view of a portion of a cash register showing the irnproved register control lock in the normal position so as to prevent operation of the main shaft of the machine;

Fig. 2, a side elevation partly in section showing the control lock in the position shown in Figure l;

Fig. 3, a detached perspective view of the improved control lock showing the association of the saine with the main shaft or" the machine;

Fig. 4, a fragmentary plan sectional View of the control lock showing the key .inserted in the lock plug rendering the latch and lock lever inoperative so as to permit operation of the machine;

Fig. 5, a sectional elevation of the lock in the position shown in Fig. Ll;

Fig. 6, a fragmentary sectional View taken as on the line 6 6, Figure l showing the latch and lock lever in normal or locked position;

Fig. 7, a front elevation of the improved lock; and

Fig. 6, an elevation of the split key for operating the lock.

Similar numerals refer to throughout the several views.

The main shaft of a cash register of conventional design is indicated at lil and may he motor operated as is customary in many cash registers, or may be operated hy the handle H the shaft being arranged to he rocked in the direction of the arrow shown Fig. 3 in order to operate the machine.

A rocker arm l2 is fixed upon the main shaft it and may he connected, as by linkage i3, with the various mechanism of the cash register.

As all of these parts may he of any usual construction and since they in themselves form no part of the present invention it is not thought necessary to further illustrate or describe the same.

The improved control lock to which the invention pertains includes a stop lever lll pivoted at one end as at i5 upon the rocker arm i2, the free end Et of this stop lever being held in slidahle contact with the bottom wall il of the machine b'y means of a spring i8 one end of which may he connected to the lug il) extending upwardly from an intermediate portion of the stop similar parts lever irl, the other end of the spring being connected to a stud 2l) mounted in the adjacent side wall 2l of the machine.

A stud 22 may be xed upon the free end portion of the stop lever hi for slidable contact against the side wall 2i so as to hold the free end portion of the stop lever spaced from the side wall.

The lock lever 23 is fulcrumed intermediate its ends upon the bottom wall Il of the register as indicated at 24 and a spring 25 is connected to a post 25 upon the forward end of the lock lever, and to a flange or ear 2 upon the lock bracketl 28 for the purpose of holding the lock lever in the position best shown in Figs. l and 3 of the drawings, with the upturned rear end 29 of the lock lever engaged in the notched forward end i6 of the stop lever so as .to prevent rotation oi the main shaft i@ forwardly or in the direction of the arrow shown in Figs. 2 and 3.

The lock lever latch indicated generally at 3G is of angular form, the leg 3l thereof being pivotally connected to the side wall 2l of the register as shown at 32 and the top portion 33 of the latch extending over the lock pin or post a and depends therefrom in position to be located adjacent to the outer side of the lock pin Z.

Thus, in the normal position of the parts the spring 35 holds the lock lever latch in the upright or forward position with the pin 38 thereof located in the path of the lock pin 26 so as to prevent movement of the lock lever 23 in a direction to prevent the upturned rear end 29 thereof from being moved out of the path oi the stop lever I 4.

The lock bracket 23 is connected to the iront wall of the register and carries the lock plug 39 provided with a horizontal key slot 4l).

A wire key guide 4I is connected to the inner side or" the lock plug and located transversely across the intermediate portion of the slot 40.

This is for the purpose of preventing a nail or a wire or tool from being inserted through the keyhole fill and engaging both the depending finger 3!! of the lock lever latch and the lock pin 25.

As it is obvious thatI the ringer 34 of the latch must be engaged and the latch tilted back so as to move the latch pin 33 out of the path of the lock pin 2li, before the lock lever 23 may be moved out of the path of the stop lever I4, it will be seen that the guide 4| will prevent the lock irom being operated by a nail, wire, or the like.

The key 42 for operating the improved control lock is longitudinally slotted as at 43 to receive the guide 4l when the key is inserted into the slot 4B.

With the parts in the normal position as shown in Figs. l, 2, and 3, the main shaft HJ of the register cannot be rotated so that an unauthorized person cannot operate the register.

When the operator desires to use the register he inserts the key 42 into the slot di). As the key is pushed inward the portion i4 thereof on the left side ol the longitudinal slot 43 will Cil rst contact the depending inger 34 of the latch tilting the latch backward upon its pivotal point until the latch pin 33 is moved out of the path of the lock pin 26 at which time the portion 45 on the right side of the slot 43 of the key will contact the lock pin 26 pushing the same outward toward the side wall 2| of the register and swinging the lock lever 23 upon its fulcrum 24 so that the upturned rear end 29 thereof is moved out of the path of the stop lever i4 permitting the main shaft il) to be operated.

As the key reaches the inward limit of its movement the notch 46 in the side thereof will engage the lock pin 26 and the spring 25 upon the lock lever will hold the lock pin frictionally in said notch to prevent accidental withdrawal of the key.

It will also be seen that as the key moves to its inward position it will ride under the depending finger 34 of the latch, as shown in Figs. 4 and 5, the spring 35 holding the same irictionally engaged with the top of the key, providing further means for preventing accidental withdrawal of the key.

It will thus be seen that when the key has been inserted to unlock the control lock it will be held in pla-ce against accidental withdrawal holding the machine unlocked for use until such time when the key is manually withdrawn.

I claim:

1. In a cash register provided with a rotatable main shaft, stop means upon the main shalt, a lock lever fulcrumed within the register, means normally vholding the lock lever in position to locate a portion thereof in the path of the stop means so as to prevent rotation ol the main shaft, a lock lever latch for normally preventing movement of the lock lever, a locl'; plug in the register having a key receiving slot, so positioned that a key inserted through said slot will first release the latch and then move the lock lever out of the path oi said stop means.

2. In a cash register provided with a rotatable main shaft, stop means upon the main shaft, a lock lever fulcrumed within the register, means normally holding the lock lever in position to locate a portion thereof in the path of the stop means so as to prevent rotation or the main shaft, a lock pin upon the lock lever, a lock lever latch normally located in the path of the lock pin for preventing movement of the lock lever, a lock plug in the register having a key receiving slot, so positioned that a key inserted through said slot will rst move the latch out or the path of the lock pin and then move the lock lever out of the path of said means,

3. In a cash register provided with a rotatable main shaft, stop means upon the main shaft, a lock lever iulcrumed within the register, means normally holding the lock lever in position to locate a portion thereof in the path of the stop means so as to prevent rotation oi the main shaft, a lock lever latch mounted within the register, means normally holding the latch in position. to prevent movement of the lock lever, a lock plug in the register having a key receiving slot, so positioned that a key inserted through said slot will iirst release the latch and then move the lock lever out of the path 0I said stop means, and means upon the latch for engaging and holding a key in the lock plug.

el. In a cash register provided with a rotatable main sha-it, stop means upon the main shalt, a lock lever fulcrumed within the register, means normally holding the lock lever in position `to locate a portion thereof in the path of the stop means so as to prevent rotation of the main shaft, a lock pin upon the lock lever, a lock lever latch pivotally mounted in the register, a latch pin upon the latch, means normally holding the latch in position to locate the latch pin in the path of the lock pin for preventing movement of the lock lever, a lock plug in the register having a key receiving slot, so positioned that a key inserted through said slot will rst tilt the latch to move the latch pin out of the path of the lock pin and then engage the lock pin and move the lock lever out of the path of the stop means, and means upon the latch for engaging and holding a key in the lock plug.

5. In a cash register provided with a rotatable main shaft, stop means upon the main shaft, a lock lever fulcrumed within the register, means normally holding the lock lever in position to locate a portion thereof in the path of the stop means so as to prevent rotation of the main shaft, a lock lever latch mounted in the register for normally preventing movement of the lock lever, a lock plug in the register having a key receiving slot therein, and means dividing said slot into two parts, to receive a longitudinally slotted key for insertion into both parts of said slot, one side of the slotted key first releasing the latch and the other side of the key then moving the lock lever out of the path of the stop means.

6. In a cash register provided with a rotatable main shaft, stop means upon the main shaft, a lock lever fulcrumed within the register, means normally holding the lock lever in position to locate a portion thereof in the path of the stop means so as to prevent rotation of the main shaft, a lock lever latch mounted in the register for normally preventing movement of the lock lever, a lock plug in the register having a key receiving slot therein, means dividing said slot into two parts, to receive a longitudinally slotted key for insertion into both parts of said slot, one side of the slotted key first releasing the latch and the other side of the key then moving f the lock lever out of the path of the stop means, and means upon the latch for engaging and holding the key in the lock plug.

7. In a cash register provided with a rotatable main shaft and a rocker arm upon the main shaft, a stop lever pivoted at one end upon the rocker arm, a lock lever fulcrumed intermediate its ends in the register and having an upturned end, a lock pin on the other end of the lock lever, a spring normally holding the upturned end of the lock lever in the path of the stop lever to prevent rotation of the main shaft, a lock lever latch pivotally mounted in the register, a latch pin upon the latch, a spring normally holding the latch in position to locate the latch pin in the path of the lock pin to prevent movement of the lock lever, a nger upon the latch, a lock plug mounted in the register and having a key receiving slot therein, so positioned that a key may be inserted into said slot for first contacting said finger and tilting the latch to move the latch pin out of the path of the lock pin and then contacting the lock pin and moving the upturned end of the lock lever out of the path of the stop lever, said finger frictionally engaging the side of the key and holding the key in the lock plug.

8. In a cash register enclosed within a casing and provided with a rotatable main shaft and a rocker arm upon the main shaft, a stop lever pivoted at one end upon the rocker arm, spring means holding the free end of the stop lever in sliding contact with the bottom of the casing, a lock lever fulcrumed intermediate its ends upon the bottom of the casing, a lock pin upon one end of the lock lever, la spring normally holding the other end. of the lock lever in the path of the free end of the stop lever to prevent rotation of the main shaft, a lock lever latch pivotally mounted on the side of the casing, a latch pin upon the latch and a spring normally holding the latch in position to locate the latch pin in the path of the lock pin to prevent movement of the lock lever, so that When the latch is tilted the latch pin will move out of the path of the lock pin permitting the lock lever to be moved out of the path of the stop lever so that the main shaft may be rotated.

9. In a cash register enclosed Within a casing and provided with a rotatable main shaft and a rocker arm upon the main shaft, a stop lever pivoted at one end upon the rocker arm, spring means holding the free end of the stop lever in sliding Contact With the bottom of the casing, a lock lever fulcrumed intermediate its ends upon the bottom of the casing, a lock pin upon one end of the lock lever, a spring normally holding the other end of the lock lever in the path of the free end of the stop lever to prevent rotation of the main shaft, a lock lever latch pivotally mounted on the side of the casing, a latch pin upon the latch, a spring normally holding the latch in position to locate the latch pin in the path of the lock pin to prevent movement of the lock lever and a depending finger upon the latch, there being a key receiving slot in the casing so positioned that insertion of a key through said slot and against said depending finger will tilt the latch moving the latch pin out of the path of the lock pin and then engage the lock pin moving the lock level' out of the path of the stop lever.

10. In a cash register enclosed Within a casing and provided with a rotatable main shaft and a rocker arm upon the main shaft, a stop lever pivoted at one end upon the rocker arm, spring means holding the free end of the stop lever in sliding contact with the bottom of the casing, a stud upon the rocker arm for holding the stop lever spaced from the adjacent side of the casing, a lock lever fulcrumed intermediate its ends upon the bottom of the casing, a lock pin upon one end of the lock lever, a spring normally holding the other end of the lock lever in the path of the free end of the stop lever to prevent rotation of the main shaft, a lock lever latch pivotally mounted on the side of the casing, a latch pin upon the latch and a spring normally holding the latch in position to locate the latch pin in the path of the lock pin to prevent movement of the lock lever, so that when the latch is tilted the latch pin will move out of the path of the lock pin permitting the lock lever to be moved out of the path of the stop lever so that the main shaft may be rotated.

11. In a cash register enclosed Within a casing and provided with a rotatable main shaft and a rocker arm upon the main shaft, a stop lever pivoted at one end upon the rocker arm, said stop lever having a notched free end, spring means holding the free end of the stop lever in sliding Contact with the bottom of the casing, a lock lever fulcrurned intermediate its ends and having an upturned end, a lock pin upon the other end of the lock lever, a spring normally holding the upturned end of the lock lever in the path of the notched free end of the stop lever to prevent rotation of the main shaft, a lock lever latch pivotally mounted on the side of the casing, a latch pin upon the latch and a spring normally holding the latch in position to locate the latch pin in the path of the lock pin to prevent movement of the lock lever, so that when the latch is tilted the latch pin will move out of the path of the lock pin permitting the lock lever to be moved out of the path of the stop lever so that the main shaft may be rotated.

FLETCHER L. WEST. 

